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VulnerabilityPublished Updated

CVE-2024-26757: Linux kernel · md: Don't ignore read-only array in md_check_recovery()

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 6.8.0-2002.2 when convenient.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.8.0-2002.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Apr 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade the Ubuntu linux-raspi-realtime package to 6.8.0-2002.2.

Affected software

ProductAffectedFixed in
Ubuntu Pro Realtime 24.04 LTSlinux-raspi-realtimepkg:deb/ubuntu/linux-raspi-realtime?arch=source&distro=realtime/nobleOther threatsAffected
  • <6.8.0-2002.2
Fixed in
  • 6.8.0-2002.2
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threatsAffected
  • 5.13.0-19.19 – 5.15.0-198.208
103 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-allwinner-5.19pkg:deb/ubuntu/linux-allwinner-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1007.7~22.04.1 – 5.19.0-1015.15~22.04.1
8 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threatsAffected
  • 5.13.0-1005.6 – 5.15.0-1117.124
95 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-aws-5.19pkg:deb/ubuntu/linux-aws-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1019.20~22.04.1 – 5.19.0-1029.30~22.04.1
10 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-aws-6.2pkg:deb/ubuntu/linux-aws-6.2?arch=source&distro=jammyOther threatsAffected
  • 6.2.0-1005.5~22.04.1 – 6.2.0-1018.18~22.04.1
14 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available to fix this issue. Users should apply the official kernel updates that address CVE-2024-26757 to prevent the hang condition. Since this is a kernel-level fix, upgrading to a fixed linux-azure kernel version is the recommended remediation. No additional mitigations are indicated by the vendor advisory.

Description

A vulnerability in the Linux kernel's md (multiple device) subsystem related to handling read-only arrays in md_check_recovery() has been resolved. The issue arises when dm-raid manipulates the read-only flag without properly stopping the sync thread, causing a hang during array stop operations. This flaw can lead to a denial of service by hanging the system during RAID recovery operations. The vulnerability affects specific versions of the linux-azure kernel prior to 6.8.0-2002.2 and several specific 4.x versions. A fix is available to address this synchronization and state management issue.

References

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